This is indeed available in-store at ASDA (in mine at least) for £6, or as part of their '2 for £10' offer. Similar boxsets are included, such as:
Mr Deeds/Anger Management/Happy Madison
Pitch Black/The Chronicles of Riddick (theatrical version)/Doom
Black Hawk Down/Jarhead/Tears of the Sun (theatrical version)

This is indeed available in-store at ASDA (in mine at least) for £6, or as part of their '2 for £10' offer. Similar boxsets are included, such as:
Mr Deeds/Anger Management/Happy Madison
Pitch Black/The Chronicles of Riddick (theatrical version)/Doom
Black Hawk Down/Jarhead/Tears of the Sun (theatrical version)

I posted the Asda deal last week. Noticed they have a wider selection in there now